CVE-2021-47514: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlink_nl_cmd_reload() While preparing my patch series adding netns refcount tracking, I spotted bugs in devlink_nl_cmd_reload() Some error paths forgot to release a refcount on a netns. To fix this, we can reduce the scope of get_net()/put_net() section around the call to devlink_reload().

Affected products

• Linux Linux Kernel: from 5.10, before 5.10.85 (fixed in 5.10.85); from 5.11, before 5.15.8 (fixed in 5.15.8); version 5.16 only

Published 2024-05-24. Last modified 2026-06-17.